MSFS2020 V7

Hey Ron, not sure what you mean update only through the store.  Do you mean addons or the simulator, because it seems the simulator forces updates only one way and it's mandatory or no-go otherwise.  The first thing I'd do with problems after an update of FS2020 is the suggested move of everything out of the Community folder before restarting.  If it starts ok then it's one of the addons and you can incrementally add back the community folder items until the cause of the crash is identified.  Then you can exclude that addon from the Community folder until an update is released for it.

I would certainly try that and do some googling of Internet forums before a total reinstall of my simulator.

Hope things are working for you again.

John